Dish-cleaner.



Patented Feb. I3, [900.

I F. J. RARiSH.

DISH CLEANER.

(Application filed Apr. '7, 1896. Renewed Nov. 9, 1899.)

5 Sheets-Sheet (No Model.)

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No. 643,424. Patented Feb. 13, I900. F. .1. PARISH.

DISH CLEANER.

(Application filed Apr. 7, 1896. Renewed Nov. 9, 1899.) (No Model.) 5 Sheets-Sheet 2.

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No. 643,424. .Patented Feb. B, 1900. F. J. PARISH.

DISH CLEANER.

(Application filed Apr. 7, 1896. Renewed Nov. 9, 1899.)

5 Sheets-Sheet 3.

(No Model.)

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No. 643,424. Patented Feb. l3, moo.

F. J. PARISH.

DISH CLEANER.

[Applicatibn filed Apr. 7, 1896. Renewed Nov. 9, 1899.) M L) 5 Sheets-Sheet 4,

No. 643,424. Patented Feb. l3, I900.

F. J. PARISH.

DISH CLEANER.

(Application filed Apn 7 1898. Renewed Nov. 9, 1899.)

5 Shafts-Sheet 5 (No Model.)

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NITED STATES PATENT FFICE.

FRANK JOSEPH PARISH, OF NEW YORK, N. Y., ASSIGNOR TO JAMES R. FLOYD d & SONS, OF SAME PLACE.

DISH-CLEANER.

SPECIFICATION forming part of Letters Patent No. 643,424, dated February 13, 1900.

Application filed April 7,1896. Renewed November 9, 1899. Serial No. 736,437. (No model.)

To alt whom it may concern:

Be it known that I, FRANK Josnru PARISH, a citizen of the United States, residing at New -York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Dish-Washing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain improvements on the dish-washing machine for which Letters Patent No. 493,261 were granted to Robert G. Ferguson under date of March 14, 1893, the object being to improve the general construction and also the details of the machine referred to.

The main characteristic features of the Forguson machine are employed in the present machine; and my improvements comprise novel means for oscillating the water-agitating devices, for supplying and circulating the steam for heating the water, for preventing overflow splashing of the water, and, generally, novel features of construction contributing to the efficiency and ease of operation of this class of machines.

In the accompanying drawings, which illustrate my invention, Figure 1 is a side elevation of the machine. Fig. 2 is a vertical section thereof. Fig. 3 is a horizontal section on the line 3 3 of Fig. 2. Fig. 4 is a view in perspective of the flanged covers of the machine-tanks. Fig. 5 is a horizontal section illustrating the engine and connections for oscillating the machine-dashers and showing a plan of the base-plate; and Fig. 6 is a plan View of the bottom plate of the machine, the tanks and their contained mechanism being omitted.

The base-plate of the machine is of the irregular shape shown, comprising a central body portion 1,longitudinal arms 2, and trans- Verse arms 3. The supporting-legs 4 of the tanks are secured to the base-plate by bolts 5, and said base-plate is provided with stepbearings 6 and 7, within which are supported the shafts 8 and 9 of the agitating devices.

10 indicates a bottom plate, of oval form, secured upon the legs 4 and provided with two independent ring-flanges 11 and 12. At the center or axial point of each of these rings the bottom plate 10 is formed with a circular opening 13, surrounded by an annular flange 14, projecting upwardly to the height of the ring-flanges 11 and 12, and respectively concentric therewith. The upper ends 15 of the shafts 8 and 9 project through the openings 13 in the bottom plate and are supported therein by suitable glands 16, secured by a cap 17 and bolts 18, and provided with packing 19 between the gland and the walls of the openings, as clearly shown in Fig. 2.

20 and 21 indicate hollow cylinders open at top and bottom and each provided with a right-angular inwardly-extending edge flange 22 at its upper end and a similar flange 23 at its lower end. These cylinders are arranged side by side upon the bottom plate 10, their 7'0 lower flanges 23 conforming to and registering with the rings 11 and 12 of the bottom plate. The cylinders, in connection with the bottom plate, form tanks. The tanks are socured in place by bolts 24, which pass downwardly through the flanges 23 and into the rings 11 and 12. Interposed between the lower end of each of the tanks 20 and 21 and the bottom plate 10 is a false bottom or diaphragm 25, consisting of a disk of metal cor- 8o responding in size to the tanks and formed with a central opening 26, registering with the openings 13 in the bottom plate. These false bottoms 25 are secured at their outer edges by the bolts 24, which secure the tanks, and at their inner edges by bolts 27, which pass through the disks and into the annular flanges 14. The annular spaces 28 and 29 between the bottom plate and false bottoms 25 constitute steam-spaces connected to a source of supply, as will be explained hereinafter.

Rigidly secured to the upper end of each of the shafts 8 and 9 is a water-agitating device comprising a spider 30, of disk form, centrally bored to fit upon the shaft, and a series of vertically-disposed blades or dashers 31, secured at their lower ends to upwardly-extending annular flanges 32 of the spider-arms and at their upper ends to a fiat ring 33. These blades or dashers are arranged at an angle to a radial line drawn from the axial center of the bottom to insure the required agitation of the water. The upper ends of the shafts 8 and f) are each circumferentially reduced to form a stud 3t and a shoulder 35 to receive a cage comprising a hub 36, bored to loosely fit over the stud 34. and rest upon the shoulder 35, a series of bent rods 37, and a flanged collar or annulus 38, connecting the upper ends of the rods 37. The hubs 36 are each provided with a series of threaded radial peripheral openings 30 to receive the lower ends of the rods 37, which latter are bent at right angles at the point a0 and extend upwardly and are then bent outwardly at their upperends 41 for attachment by rivets 42 to the flanges -13 of the collars 38. These collars are flared outwardly to constitute beveled annularseats for the cover-plates 4t and 45. These plates are shown as of square form, each having a circular opening 46, from which depends an annular inclined flange 47. These flanges i7 lit down snugly within the flaring annuluses 38. The plate or cover sections it and 15 are provided at all four of their sides with an upwardly-eX- tending inclined flange l8, and the section -i5 is also formed at its inner side, where it meets the plate at, with an angular flange extension 49, projecting horizontally from the flange 4S and then inclined downwardly to overlap the adjacent flange 48 of the plate 4%. This overlapped connection between the cover-plates closes the space between the tanks to prevent the dripping of water or the accumulation of dirt in said space and also aids in retaining the cover-plates in position upon the tanks.

Below the upper ends of the rods 37 I provide a horizontal partition 50, consisting of a series of segmental plates 51, supported upon pins 52, projecting radially from the tank and extending through eyes or hooks 53, depending from the under sides of the plates. One end 54 of each of the plates 51 is flanged to adapt it to overlap the end of the next adjacent plate, as shown in Fig. 2, and the plates are further secured by tap-bolts 55, bearing against the pins 52. These segmental plates direct the water from side to side and prevent its splashing upwardly too far when agitated by the dash-blades 31.

I will now describe the mechanism for oscillating the agitator and the connections for supplying the tanks with steam and water.

Referring to Figs. 5 and 6, the numeral 56 indicates an oscillating engine (which may be of any preferred construction) supported upon a trunnion-block 57, secured to the baseplate 1 of the machine. The oscillating cylinder 58 of the engine communicates motion through its piston-rod 59 to a crank com prising (preferably in a single casting) a shaft 60, fly-wheel 61, counterbalance-weight 62, and wrist-pin 63, the shaft being supported in a suitable bearing in the base-plate. The piston-rod 59 is loosely connected to the wristpin 63, and to said wrist-pin are also secured the inner ends of links 6% and 65, the oppoany suitable source through the inlet-pipe 68 and passes upwardly and then downwardly by the pipe 69,- where it receives oil from a lubricator 70 of the well-known condenser type and finally enters the steam-chest of the cylinder.

The exhaust-steam from the cylinder 58 escapes through the pipe 71 and passes thence through the pipe 72 to the steam-space 28 below the rinser. This space 28 is divided by a vertical partition 73, Fig. 0, which causes the steam to circulate around it, before cscaping through a transfer-pipe 74 to the steamspace 29 below the washer. The space 2!) is unobstructed, so that the steam may circulate in all directions, as indicated by the arrows in Fig. 6, before passing out through the outlet or discharge pipe 75.

76 indicates the main supply-pipe for supplying steam, hot water, or cold water to the tanks. The cocks 77, 7S, and 79 respectively control the admission of steam, hot water, and cold water from suitable supply-pipes. (Not shown.) The three-way cocks 80 and 81 permit the admission of steam or water to the tanks through the branch pipes 82 and 83 and also when properly turned serve as discharge cocks to drain the tanks. The'supply of steam to the engine is controlled bya cock 8st in the pipe 68; but Iprovide in addition a by-pass connection between the pipes 68 and 69, provided with a cook 85. \Vhen it is not desired to operate the machine, the engine may be kept in motion slowly by closing the cook 84 and opening the cock 85 to allow a limited amount of steam to pass to the cylinder.

In the operation of the machine the dishes to be washed are packed in an open-work basket and placed within the cage of the washing-tank. Any suitable suspending devices may be employed to support the basket within the tank. The tank is supplied with water as required through the supply-cocks, and the operation of the engine causes a thorough agitation of the water. The cage serves as a guard to protect the basket from contact with the blades or dashers, and the cover-plates and segmental dash-plates forming the horizontal partition aid in preventing overflow splashing of the water.

It is apparent that the dishes after being washed may be readily transferred to the rinser and that the loss of time incident to the use of a single tank as both a washer and rinser is avoided. My construction also enables me toutilize the exhaust-steam from the engine as a heating medium for the water, as described.

Having thus described my invention, what I claim is 1. In a dish-washing machine, the combination with a plurality of cylinders open at top and bottom, of a bottom plate common to said cylinders and provided with ring-flanges projecting above the surface of the bottom plate and registering with flanges on the cylinders, and false bottoms or diaphragms interposed between the flanges of the cylinders and bottom plate to form steam-spaces, substantially as described.

2. In a dish-washing machine, the combination with the washing and rinsing cylinders, open at top and bottom, of a bottom plate common to both cylinders and provided with ring-flanges, and central annular flanges concentric with said ring-flan ges, diaphragmsinterposed between the cylinders and bottom plate, steam inlet and discharge pipes, and agitating devices within the cylinders, substantially as described.

3. In a dish-washing machine, the combination with the tanks comprising cylinders open at top and bottom, and a bottom plate common to both cylinders, of false bottoms arranged above the bottom plate to form a steam-space below each of said cylinders,

steam supply and discharge pipes, and a vertical partition between one of said false bottoms and the bottom plate; substantially as described.

4. In a dish-washing machine, the combination with a tank, of an oscillating shaft projecting therein, an annular oscillating agitator fixed on said shaft, and a protecting-guard arranged within the agitator and loosely supported upon the upper end of saidshaft; substantially as described.

5. In a dish-washing machine, the combination with a tank of an oscillating shaft projecting therein, agitating blades or dashers secured to said shaft, and acage-guard loosely supported upon the shaft concentric with the agitating-blades; substantially as described.

6. In a dish-washing machine, the combination with a tank and its agitating-blades, of a protecting-cage provided with a flaring or beveled collar and a cover-plate having a depending flange fitting Within said collar; substantially as described.

7. In a dish-washing machine, the combination with a tank and a revolving shaft provided with agitating-blades, of a protectingcage comprisingahub loosely support-ed upon said shaft, a series of angular rods secured to said hub, and a collar or annulus securing the upper edges of the rods; substantially as 7 described.

8. In a dish-washing machine, the combination with the two tanks, of cover-plates therefor, said plates having depending circular flanges, upwardly-ex tending edge flanges, and an overlapped joint between them; substantially as described.

9. In a dish-washing machine, the combination with a tank, and an annular oscillat ing agitator, of removable horizontal dashplates comprising segmental overlapping sections supported from the wall of the tank and projecting over the upper ends of said blades;

substantially as described.

10. In a dish-washing machine, the combination with the water-tanks, of oscillating shafts carrying vertical agitating-blades, and provided with rocker-arms arranged at different angles, of an oscillating engine, a crankshaft, pitman connections between the crankshaft and rocker-arms and a connection between the crank-shaft and the engine; substantially as described.

11. In a dish-washing machine, the combination with the water-tanks provided with steamspaces at the bottom, of oscillating shafts carrying agitating-blades, and provided with rocker-arms arranged at different angles, an oscillating en gine-cylinder and piston-rod, connections between the piston-rod and rocker-arms, and pipe connections for supplying said steam-spaces with exhauststeam from the engine; substantially as described.

12. In a dish-washing machine, the combination with a base-plate, of legs or supports rising therefrom, a tank bottom plate secured upon said legs, independent cylinders supported on said bottom plate, oscillating shafts having bearings on the base-plate, and extending into said tanks, and provided with agitating-blades, and motor mechanism arranged between the base and bottom plate for oscillating said shafts, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK JOSEPH PARISH.

WVitnesses:

H. E. FLOYD, JAMEs N. WELLS. 

